We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleProblems in the measurement of cognitive deficits.AuthorsChapman, Loren J.; Chapman, Jean P.PublicationPsychological Bulletin, 1973, Vol 79, Issue 6, p380ISSN0033-2909Publication typearticleDOI10.1037/h0034541